Volume 52/Number4/Abstract 1
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Acta Parasitologica, Vol. 52, No. 4, 2007, 342–345. DOI: 10.2478/s11686-007-0047-7
Marie-Claude Durette-Desset (1) and John M. Kinsella (2)* – A new species of Heligmosomoides (Nematoda, Heligmosomidae) parasitic in Peromyscus maniculatus (Rodentia, Cricetidae) from Pennsylvania, USA

(1) Département de Systématique et Evolution, UMR 7138 associée au CNRS, Muséum National d'Histoire Naturelle, C.P. 52, 61, rue de Buffon, 75231, Paris Cedex 05, France; (2) HelmWest Laboratory, 2108 Hilda Avenue, Missoula, Montana 59801, USA
*Corresponding author: wormdwb@aol.com
Heligmosomoides vandegrifti sp. nov. (Nematoda, Heligmosomidae) is described from Peromyscus maniculatus (Rodentia, Cricetidae) from Pennsylvania, USA. It differs from its closest congener, H. douglasi, in the number of cuticular ridges (35 vs. 32 in male, 36 vs. 41 in female at mid-body), longer bursal rays 2 in relation to rays 3, and in having smaller spicules (635–740 µm long vs. 1 mm). It is proposed that both H. douglasi and H. vandegrifti sp. nov. are parasites of capture from species in North American arvicoline rodents.
KEY WORDS: Heligmosomoides vandegrifti sp. nov., Nematoda, Heligmosomidae, Peromyscus maniculatus, deer mouse, Pennsylvania, USA

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